Probably planted by the department of highways.
@MikeGras
Gaillardia (pronounced /ɡeɪˈlɑrdiə/), the Blanket flowers, is a genus of drought-tolerant annual and perennial plants from the sunflower family (Asteraceae), native to North America and South America. It was named after M. Gaillard de Charentonneau, an 18th-century French magistrate who was a patron of botany. The common name refers to the inflorescence's resemblance to brightly patterned blankets made by native Americans.